Read the bottle -- I sprayed Roundup for posion ivy last night and it said it was safe for people and animals after completely dry. It also said rain-proof in 30 minutes. From that I assumed it would be completely dry and safe within 30 minutes.
How long should I wait after my husband sprayed the roses with Roundup before I let the kittens out?
Double check the bottle. As a rule of thumb, wait at least 2 hours. If high humidity - wait longer. Might want to spray in mid/late evening and let dry overnight.
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